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What is a counterexample of all odd numbers are prime?
9 = 3*3 and so it is not a prime.
What is a counterexample for the sentence All even numbers are composite numbers?
The number 2, which is a prime number. Any larger even number is a multiple of 2, and therefore not a prime number.
What's a counterexample to the statement that all odd numbers can be expressed as the sum of two primes?
There is a simple counterexample: the number 1:1 is an odd numberthe first prime is 2 (not 1, see below) which is bigger than 1 so 1 cannot possibly be the sum of two primes.There are plenty of other counterexamples:The sum of two odd numbers is even;All prime numbers except 2 are odd;When adding two prime numbers together, to get an odd result one of them must be even, namely 2;So any odd number that is 2 more than a composite number will not be expressible as the sum of two primes. examples: 11, 17, 23, 27, 29, 35, 37, ...Another counterexample is the number 3:3 is an odd number3 can only be made by 2 + 11 is not a prime (see below)A prime number is a number that has exactly 2 distinct (different) factors.The number 1 has only 1 distinct factor (the number 1) and so is not a prime number; the first prime number is 2.
What are the all prime numbers?
2,3,5,7,11,13,17,19,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,89,97 these are all the prime numbers
What do 3 5 7 11 and 13 have in common?
They are all odd, and they are all prime numbers
What a counterexample?
a number wich disproves a proposition For example, theprime number 2 is a counterexample to the statement "All prime numbers are odd."
What is a counterexample?
a number wich disproves a proposition For example, theprime number 2 is a counterexample to the statement "All prime numbers are odd."
What is a counterexample of all odd numbers are prime?
9 = 3*3 and so it is not a prime.
What is a counterexample for the sentence All even numbers are composite numbers?
The number 2, which is a prime number. Any larger even number is a multiple of 2, and therefore not a prime number.
Find a counterexample to the statement all us presidents have served only one term to show that this statement is false.?
find a counterexample to the statement all us presidents have served only one term to show statement is false
Prove and disprove the statement that every prime number is an even number?
To disprove this all you need to do if find one example of a prime that is not even. Such an example is called a counterexample. If a statement that all such and such or every such and such has a certain property, all you have to do to disprove it it to demonstrate the existence of on such and such that lacks the property .
If some Numbers are Integers and some Integers are Prime then all Numbers are definitely Prime This statement is true or false?
The statement is false.
What counterexample to the statement all odd numbers are divisible be 3?
5, 7, a bunch of numbers that are odd are not divisible by 3. numbers that are divisible by three can have all their numbers added together and come out with a number that is divisible by 3.
If some numbers are Integers and some numbers are prime then all numbers are prime Is this a true or false statement?
false
Is a counterexample of all planets have moons?
Yes, the planet Mercury does not have any moons. This serves as a counterexample to the statement "all planets have moons."
If some numbers are integers and some integers are prime then all numbers are definitely prime is this a true statement?
No.
If some Numbers are Integers and some Integers are Prime then all Numbers are definitely Prime This statement is?
False
